Home / 30,587.60-45,876.45-8,395.78

Finding the Fourth Proportional to 30,587.60, 45,876.45 and 8,395.78

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Solution

The fourth proportional to 30,587.60, 45,876.45 and 8,395.78 is: 12,592.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,587.60 : 45,876.45 = 8,395.78 : x
  2. Step 2: Convert to fraction form
    30,587.60/45,876.45 = 8,395.78/x
  3. Step 3: Cross multiply
    30,587.60x = 45,876.45 × 8,395.78
  4. Step 4: Simplify right side
    30,587.60x = 385,168,352.00
  5. Step 5: Solve for x
    x = 385,168,352.00/30,587.60
  6. Step 6: Final answer
    x = 12,592.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.